Why Do Frogs Like St. Patrick's Day?

Q: Why did St. Patrick drive all the snakes out of Ireland?
A: He couldn't afford plane fare
Q: What do you call a fake stone in Ireland?
A: A sham rock
Q: Why do frogs like St. Patrick's Day?
A: Because they're always wearing green
Q: What does a leprechaun call a happy man wearing green?
A: A Jolly Green Giant
Q: What did one Irish ghost say to the other?
A: 'Top o' the moaning!
Q: How can you tell if an Irishman is having a good time?
A: He's Dublin over with laughter!